Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier
Patent
1996-11-07
1998-11-24
Nappi, Robert E.
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Includes motor or motor driven linkage for shifting barrier
187289, 310 12, B66B 314
Patent
active
058410821
ABSTRACT:
A motor secondary in a linear induction motor used for opening and closing doors in an elevator system includes a secondary guide system having a first secondary guide and a second secondary guide. The first secondary guide is disposed on a bottom longitudinal edge of the motor secondary and the second secondary guide is disposed on a top longitudinal edge of the motor secondary. The guides space apart the motor secondary from the motor primary and establish small and constant running clearances therebetween.
REFERENCES:
patent: 1881014 (1932-10-01), Ayers
patent: 1881016 (1932-10-01), Rose
patent: 1881017 (1932-10-01), Jacobson
patent: 1916491 (1933-07-01), Rose
patent: 2940550 (1960-06-01), Mathews
patent: 3971537 (1976-07-01), Winkle et al.
patent: 4148531 (1979-04-01), Hornagold
patent: 4419823 (1983-12-01), Thorban
patent: 4698876 (1987-10-01), Karita
patent: 4876765 (1989-10-01), Karita
patent: 5086881 (1992-02-01), Gagnon et al.
patent: 5134324 (1992-07-01), Sakagami et al.
patent: 5172518 (1992-12-01), Yoshino
patent: 5203432 (1993-04-01), Grinaski
patent: 5373120 (1994-12-01), Barrett et al.
patent: 5612518 (1997-03-01), Jaminet et al.
U.S. Patent Application Serial No. 8/225,024 filed Apr. 8, 1994 entitled "Linear Induction Motor Door Drive Assembly for Elevators"; Jerome F. Jaminet, et al.
EPC Search Report for Serial No. 97308733.1-2313 dated Feb. 12, 1998.
European Search Report for Serial No. 97308721.6-2313 dated Feb. 3, 1998.
Rivera James A.
Tracey Michael J.
Nappi Robert E.
Otis Elevator Company
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